I believe it is 3-5. I have 25-30 with a 7 year (short) credit history, lots of inquiries, lots of accounts open less than a year total, less than 2% utilization, and no derogs - you can see my scores below for a reference. If I could go back -lol- I would not have opened and closed so many accounts, but they hunted me down in college and afterward with the 0% BT offers...lol Whats a FICO??